Dimethyl methylsuccinate is primarily used as an intermediate in organic synthesis, particularly in the production of specialty chemicals. It serves as a building block for creating complex molecules in the pharmaceutical industry, where it can be utilized to synthesize active pharmaceutical ingredients (APIs). Additionally, it finds application in the development of fragrances and flavors, contributing to the creation of unique scent and taste profiles. In the field of polymer chemistry, it is employed as a monomer or co-monomer to produce specialized polymers with desired properties. Its versatility in chemical reactions makes it a valuable compound in research and industrial applications.